Improvement in stove-doors



1. SPEAB.

Y Stove Door?. No. 35,551. Patented June 10,1362;

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` tobe renewed at considerable expense.

UNITED4 `STATES l PATENT OFFICE.

"li JAMES srEAR, or PHILADELPHIA, PENNsYLvANrA.

IMPROVEMENT msTovE-Doons.

` Specification forming part of Letters Patent No. 35,551, dated June 10, 1862.

To all whom it may concern:

Be it known that I, JAMES SPEAK, of the city and county `of Philadelphia, and State of Pennsylvania, haveinvented a new andnseful Improvement in Doors for Stoves.

The trouble heretofore experienced in doors for parlor-stoves'has been that when the iire was kindling the smoke and soot, as well as the dampness arising from the fuel, settled on the mica, blackening it 'in such a manner as to prevent one from seeing through it, and,

` in a great measure, detracting from the beauty of the stove; also, in many cases the mica has This blackening of y the mica always takes place while kindling the fire, particularly instoves where anthracite coal is used; and after the tire is once kindled the mica may remain in the stove for weeks at a time and no further blackening will'take place.

The object of my invention is to find a,

ready and effectual means of preventing the blackening of the mica during the process of kindling the tire. To accomplish this, I have constructed a peculiar frame for the inside of the door of the stove, one side of it holding the mica` to its place against the inside of the door, and the otherside admitting oi a piece the door, which communicate with the space between the mica and metal plate, and have also placedopenings in the top part of the frame, so as `to allow the air between the mica and the metal plate to escape into the stove when it becomes heated, thus preventing the metal plate from becoming overheated and warping. l p `The nature of\ my invention consists in so. constructing the door of a stove or heater that a metal plate may be placed before the mica while kindling the re and be easily removed after the lire is kindled.

To enable others skilled in the arts to make `and usemy invention, Iwill proceed to describe `more fully its construction andoperation; `andI dohereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying` drawings, and tothe letters of reference marked thereon.

. Take any stovedoor in which mica is used `sents the door.

and place a frame, A, Figure 1, having a wide.. iiange on the inside, one side of which frame will press the mica against the inside of the door B, Fig. 2, and the other edge having'an" opening, g g', Fig. 2, at the top, through whlch a metal plate, C, Fig. 4., may be slipped down between the tire and the mica. Openings b b are made in the lower part of the door B, Fig. 2, so as to allow air to pass into the space between the mica and the metal plate, and openings a a', also made in the top part of -the frame A, Fig. 1, s o as to allow air to pass into the stove, as is shown in Fig. 5. The frame is held to the door by means of a rod passing down through lugs cast on the door, thus firmly holding it to its place. This rod can be withdrawn and the framelremoved at any time that the mica may require to be renewed. Again, as a permanent iixturelfor the sides of a stove, where it is not convenient to use a metal plate, wire-gauze D, Fig. 6, may be used, although not so perfect a shield to the mica as themetal plate. f The openings b b at the bottom of the door B, Fig. 2, and the openings a a' at the top of the frame A,Fig. l,

foperate the same with the wire gauzens with the metal plate, and also drive out of the space the smoke that may be forced through the gauze.

Fig. 1 represents the frame. Fig. 2 repre-w Fig. 3 represents the door closed, showing the openings b b.` Fig. 4 represents the metal plate. Fig. 5 represents a sectional view of the door. Fig. 6 represents the wire-gauze; Fig. 7 represents aplate used to hold the metal plate D to its place in the bottom of the frame A. p

I amwell aware that metal platesfhave been used in stoves for preventing the mica from becoming smoked; also, Wire-gauze has been used as a partial remedy in stoves and lamps for the same purpose; but these, simply 'and broadly, I do not claim; but

What I- do claim, and `Wish to secure by Letters Patent, is-

The combination of the openings b b at the bottom' of the door and the openings a a' at the top of the frame when in connection with the micaand metal plate or wire-gauze, conl structed substantially as herein described.

Y JAMES SPEAR. l

Witnesses:

WM. A. ALLEN, J oHN THOMPSON. 

